Fibre optic transmitters are the parts of a fibre optic network that translate an electronic signal into an optical one. This signal can then be sent along the glass optical fibres as a pulse of light. Fibre optics are the most advanced form of telecommunications, as they are able to send high bandwidth information over very long distances, without the risk of electromagnetic interference, as the fibres are made from glass.
Fibre optic transmitters are used for a range of communications applications, such as in the transmission of telephone signals, internet, and cable television.
Fibre optic transmitters are normally semi-conductor devices. The two main types are LEDs (light-emitting diodes) and laser diodes.